Online open registration for the apprenticeship program begins promptly at 9:00 am. Go to the Mason Tenders Training Fund website prior to 9:00 am. At 9:00 am, a live link will appear on the homepage.Click on the link to be directed to the application form. Applications will be accepted each day from 9:00 am until 10:00 am for 10 business days (Sat. and Sun. not included) or until 1000 applications have been received, whichever comes first.